US4974427A - Compressor system with demand cooling - Google Patents
Compressor system with demand cooling Download PDFInfo
- Publication number
- US4974427A US4974427A US07/422,769 US42276989A US4974427A US 4974427 A US4974427 A US 4974427A US 42276989 A US42276989 A US 42276989A US 4974427 A US4974427 A US 4974427A
- Authority
- US
- United States
- Prior art keywords
- compressor
- temperature
- refrigeration system
- compressed gas
- set forth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/062—Cooling by injecting a liquid in the gas to be compressed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
- F25B31/008—Cooling of compressor or motor by injecting a liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
Abstract
Description
Claims (22)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/422,769 US4974427A (en) | 1989-10-17 | 1989-10-17 | Compressor system with demand cooling |
AU63010/90A AU641684B2 (en) | 1989-10-17 | 1990-09-20 | Compressor system with demand cooling |
ES90310852T ES2043578T3 (en) | 1989-10-17 | 1990-10-04 | COMPRESSOR SYSTEM WITH DEMAND REFRIGERATION. |
EP90310852A EP0423976B1 (en) | 1989-10-17 | 1990-10-04 | Compressor refrigeration system with demand cooling |
DE69007231T DE69007231T2 (en) | 1989-10-17 | 1990-10-04 | Compressor refrigeration system with on-demand cooling. |
JP2275113A JP3058908B2 (en) | 1989-10-17 | 1990-10-12 | Refrigeration equipment |
MX022830A MX169289B (en) | 1989-10-17 | 1990-10-15 | IMPROVED REFRIGERATION SYSTEM |
CN90108429A CN1052535C (en) | 1989-10-17 | 1990-10-15 | Compressor system with demand cooling |
BR909005190A BR9005190A (en) | 1989-10-17 | 1990-10-16 | REFRIGERATION SYSTEM |
KR1019900016605A KR0153441B1 (en) | 1989-10-17 | 1990-10-16 | Refrigeration system |
SU904831307A RU2096697C1 (en) | 1989-10-17 | 1990-10-16 | Refrigerating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/422,769 US4974427A (en) | 1989-10-17 | 1989-10-17 | Compressor system with demand cooling |
Publications (1)
Publication Number | Publication Date |
---|---|
US4974427A true US4974427A (en) | 1990-12-04 |
Family
ID=23676291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/422,769 Expired - Lifetime US4974427A (en) | 1989-10-17 | 1989-10-17 | Compressor system with demand cooling |
Country Status (11)
Country | Link |
---|---|
US (1) | US4974427A (en) |
EP (1) | EP0423976B1 (en) |
JP (1) | JP3058908B2 (en) |
KR (1) | KR0153441B1 (en) |
CN (1) | CN1052535C (en) |
AU (1) | AU641684B2 (en) |
BR (1) | BR9005190A (en) |
DE (1) | DE69007231T2 (en) |
ES (1) | ES2043578T3 (en) |
MX (1) | MX169289B (en) |
RU (1) | RU2096697C1 (en) |
Cited By (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5189883A (en) * | 1992-04-13 | 1993-03-02 | Natkin & Company | Economical refrigeration retrofit systems |
EP0529293A1 (en) * | 1991-08-30 | 1993-03-03 | Sanyo Electric Co., Ltd. | Refrigerating system |
EP0579374A1 (en) * | 1992-07-13 | 1994-01-19 | Copeland Corporation | Scroll compressor with liquid injection |
US5640854A (en) * | 1995-06-07 | 1997-06-24 | Copeland Corporation | Scroll machine having liquid injection controlled by internal valve |
US5674053A (en) * | 1994-04-01 | 1997-10-07 | Paul; Marius A. | High pressure compressor with controlled cooling during the compression phase |
US5716197A (en) * | 1994-04-01 | 1998-02-10 | Paul; Marius A. | High pressure compressor with internal, inter-stage cooled compression having multiple inlets |
US5769610A (en) * | 1994-04-01 | 1998-06-23 | Paul; Marius A. | High pressure compressor with internal, cooled compression |
US5873255A (en) * | 1997-09-15 | 1999-02-23 | Mad Tech, L.L.C. | Digital control valve for refrigeration system |
US6036449A (en) * | 1998-03-24 | 2000-03-14 | Cummins Engine Company, Inc. | Air compressor control |
US6047557A (en) * | 1995-06-07 | 2000-04-11 | Copeland Corporation | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
US6185949B1 (en) | 1997-09-15 | 2001-02-13 | Mad Tech, L.L.C. | Digital control valve for refrigeration system |
US6309193B1 (en) * | 1996-02-26 | 2001-10-30 | Flowork Systems Inc. | Coolant pump for automotive use |
US6601397B2 (en) | 2001-03-16 | 2003-08-05 | Copeland Corporation | Digital scroll condensing unit controller |
US6718781B2 (en) | 2001-07-11 | 2004-04-13 | Thermo King Corporation | Refrigeration unit apparatus and method |
US6862894B1 (en) | 2004-02-04 | 2005-03-08 | Donald R. Miles | Adaptive auxiliary condensing device and method |
US20060127224A1 (en) * | 2004-12-13 | 2006-06-15 | Bendix Commercial Vehicle Systems Llc | Air compressor control |
US20070059193A1 (en) * | 2005-09-12 | 2007-03-15 | Copeland Corporation | Scroll compressor with vapor injection |
US7290398B2 (en) | 2003-08-25 | 2007-11-06 | Computer Process Controls, Inc. | Refrigeration control system |
US20080078204A1 (en) * | 2006-10-02 | 2008-04-03 | Kirill Ignatiev | Refrigeration system |
US20080236179A1 (en) * | 2006-10-02 | 2008-10-02 | Kirill Ignatiev | Injection system and method for refrigeration system compressor |
US20090120114A1 (en) * | 2007-11-12 | 2009-05-14 | Ingersoll-Rand Company | Compressor with flow control sensor |
USRE40830E1 (en) | 1998-08-25 | 2009-07-07 | Emerson Climate Technologies, Inc. | Compressor capacity modulation |
US7594407B2 (en) | 2005-10-21 | 2009-09-29 | Emerson Climate Technologies, Inc. | Monitoring refrigerant in a refrigeration system |
US7596959B2 (en) | 2005-10-21 | 2009-10-06 | Emerson Retail Services, Inc. | Monitoring compressor performance in a refrigeration system |
US7644591B2 (en) | 2001-05-03 | 2010-01-12 | Emerson Retail Services, Inc. | System for remote refrigeration monitoring and diagnostics |
US7647790B2 (en) | 2006-10-02 | 2010-01-19 | Emerson Climate Technologies, Inc. | Injection system and method for refrigeration system compressor |
US7665315B2 (en) | 2005-10-21 | 2010-02-23 | Emerson Retail Services, Inc. | Proofing a refrigeration system operating state |
US20100095690A1 (en) * | 2006-12-31 | 2010-04-22 | Carrier Corporation | Compressor |
US20100158733A1 (en) * | 2008-12-22 | 2010-06-24 | Hirokatsu Kohsokabe | Oil-free scroll compressor |
US7752853B2 (en) | 2005-10-21 | 2010-07-13 | Emerson Retail Services, Inc. | Monitoring refrigerant in a refrigeration system |
US7752854B2 (en) | 2005-10-21 | 2010-07-13 | Emerson Retail Services, Inc. | Monitoring a condenser in a refrigeration system |
US7827809B2 (en) | 2006-03-20 | 2010-11-09 | Emerson Climate Technologies, Inc. | Flash tank design and control for heat pumps |
US20100305718A1 (en) * | 2009-05-29 | 2010-12-02 | Emerson Retail Services, Inc. | System and method for monitoring and evaluating equipment operating parameter modifications |
US7885961B2 (en) | 2005-02-21 | 2011-02-08 | Computer Process Controls, Inc. | Enterprise control and monitoring system and method |
US8157538B2 (en) | 2007-07-23 | 2012-04-17 | Emerson Climate Technologies, Inc. | Capacity modulation system for compressor and method |
US8308455B2 (en) | 2009-01-27 | 2012-11-13 | Emerson Climate Technologies, Inc. | Unloader system and method for a compressor |
US8495886B2 (en) | 2001-05-03 | 2013-07-30 | Emerson Climate Technologies Retail Solutions, Inc. | Model-based alarming |
US8539785B2 (en) | 2009-02-18 | 2013-09-24 | Emerson Climate Technologies, Inc. | Condensing unit having fluid injection |
US8700444B2 (en) | 2002-10-31 | 2014-04-15 | Emerson Retail Services Inc. | System for monitoring optimal equipment operating parameters |
US20140170006A1 (en) * | 2012-12-18 | 2014-06-19 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
US8964338B2 (en) | 2012-01-11 | 2015-02-24 | Emerson Climate Technologies, Inc. | System and method for compressor motor protection |
US8974573B2 (en) | 2004-08-11 | 2015-03-10 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring a refrigeration-cycle system |
US9121407B2 (en) | 2004-04-27 | 2015-09-01 | Emerson Climate Technologies, Inc. | Compressor diagnostic and protection system and method |
US9140728B2 (en) | 2007-11-02 | 2015-09-22 | Emerson Climate Technologies, Inc. | Compressor sensor module |
US9285802B2 (en) | 2011-02-28 | 2016-03-15 | Emerson Electric Co. | Residential solutions HVAC monitoring and diagnosis |
US9310439B2 (en) | 2012-09-25 | 2016-04-12 | Emerson Climate Technologies, Inc. | Compressor having a control and diagnostic module |
US9310094B2 (en) | 2007-07-30 | 2016-04-12 | Emerson Climate Technologies, Inc. | Portable method and apparatus for monitoring refrigerant-cycle systems |
US9476625B2 (en) | 2007-10-08 | 2016-10-25 | Emerson Climate Technologies, Inc. | System and method for monitoring compressor floodback |
US9494354B2 (en) | 2007-10-08 | 2016-11-15 | Emerson Climate Technologies, Inc. | System and method for calculating parameters for a refrigeration system with a variable speed compressor |
US9494158B2 (en) | 2007-10-08 | 2016-11-15 | Emerson Climate Technologies, Inc. | Variable speed compressor protection system and method |
US9541907B2 (en) | 2007-10-08 | 2017-01-10 | Emerson Climate Technologies, Inc. | System and method for calibrating parameters for a refrigeration system with a variable speed compressor |
US9551504B2 (en) | 2013-03-15 | 2017-01-24 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
US9638436B2 (en) | 2013-03-15 | 2017-05-02 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
US9683563B2 (en) | 2007-10-05 | 2017-06-20 | Emerson Climate Technologies, Inc. | Vibration protection in a variable speed compressor |
US9765979B2 (en) | 2013-04-05 | 2017-09-19 | Emerson Climate Technologies, Inc. | Heat-pump system with refrigerant charge diagnostics |
US9803902B2 (en) | 2013-03-15 | 2017-10-31 | Emerson Climate Technologies, Inc. | System for refrigerant charge verification using two condenser coil temperatures |
US9823632B2 (en) | 2006-09-07 | 2017-11-21 | Emerson Climate Technologies, Inc. | Compressor data module |
US9885507B2 (en) | 2006-07-19 | 2018-02-06 | Emerson Climate Technologies, Inc. | Protection and diagnostic module for a refrigeration system |
US10041713B1 (en) | 1999-08-20 | 2018-08-07 | Hudson Technologies, Inc. | Method and apparatus for measuring and improving efficiency in refrigeration systems |
RU2699844C1 (en) * | 2018-10-29 | 2019-09-11 | Антон Андреевич Румянцев | Cooling system compressor |
US11206743B2 (en) | 2019-07-25 | 2021-12-21 | Emerson Climate Technolgies, Inc. | Electronics enclosure with heat-transfer element |
US20220205447A1 (en) * | 2020-12-29 | 2022-06-30 | Danfoss (Tianjin) Ltd. | Compressor and method of controlling the compressor |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW278112B (en) * | 1994-05-27 | 1996-06-11 | Toyota Automatic Loom Co Ltd | |
US6213731B1 (en) | 1999-09-21 | 2001-04-10 | Copeland Corporation | Compressor pulse width modulation |
KR100739830B1 (en) * | 2001-03-23 | 2007-07-13 | 주식회사 하원제약 | Process for preparing Cephalosporin derivative |
US6615598B1 (en) * | 2002-03-26 | 2003-09-09 | Copeland Corporation | Scroll machine with liquid injection |
US9995516B2 (en) * | 2006-05-26 | 2018-06-12 | Carrier Corporation | Superheat control for HVACandR systems |
US8950206B2 (en) * | 2007-10-05 | 2015-02-10 | Emerson Climate Technologies, Inc. | Compressor assembly having electronics cooling system and method |
KR101186781B1 (en) * | 2008-06-12 | 2012-09-27 | 미쓰비시덴키 가부시키가이샤 | Power semiconductor circuit device and method for manufacturing the same |
CN102119274A (en) * | 2008-08-12 | 2011-07-06 | 开利公司 | Dedicated pulsing valve for compressor cylinder |
CN102692104A (en) * | 2011-03-25 | 2012-09-26 | 珠海格力电器股份有限公司 | Air conditioning system |
ES2563448T3 (en) * | 2011-09-21 | 2016-03-15 | Daikin Industries, Ltd. | Spiral compressor |
BE1020500A3 (en) * | 2012-02-29 | 2013-11-05 | Atlas Copco Airpower Nv | COMPRESSOR DEVICE AND METHOD FOR DRIVING A COMPRESSOR DEVICE. |
DE102013222571A1 (en) * | 2013-11-06 | 2015-05-07 | MAHLE Behr GmbH & Co. KG | sensor arrangement |
CN104964491B (en) * | 2015-06-15 | 2017-07-04 | 上海意利法暖通科技有限公司 | A kind of one-way type capillary system heat exchange and division box |
CN109269152B (en) * | 2018-08-22 | 2020-12-29 | 冷王(上海)实业有限公司 | Compressor heat exchange device and vehicle |
Citations (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3150277A (en) * | 1962-03-14 | 1964-09-22 | Worthington Corp | Hermetic motor cooling by liquid refrigerant |
US3261172A (en) * | 1963-11-12 | 1966-07-19 | Vilter Manufacturing Corp | Coolant system for hermetically sealed motor |
US3795117A (en) * | 1972-09-01 | 1974-03-05 | Dunham Bush Inc | Injection cooling of screw compressors |
US3851494A (en) * | 1972-08-10 | 1974-12-03 | Bosch Gmbh Robert | Motor vehicle cooling system with bypass regulated heat exchanger |
US3859815A (en) * | 1973-10-12 | 1975-01-14 | Maekawa Seisakusho Kk | Two-stage compression apparatus |
US3885402A (en) * | 1974-01-14 | 1975-05-27 | Dunham Bush Inc | Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use |
US3913346A (en) * | 1974-05-30 | 1975-10-21 | Dunham Bush Inc | Liquid refrigerant injection system for hermetic electric motor driven helical screw compressor |
US3931718A (en) * | 1970-04-16 | 1976-01-13 | Hall-Thermotank Products Ltd. | Refrigerant screw compression with liquid refrigerant injection |
US3945220A (en) * | 1975-04-07 | 1976-03-23 | Fedders Corporation | Injection cooling arrangement for rotary compressor |
US4006602A (en) * | 1974-08-05 | 1977-02-08 | Fanberg Ralph Z | Refrigeration apparatus and method |
US4020642A (en) * | 1973-11-19 | 1977-05-03 | Hall-Thermotank Products Limited | Compression systems and compressors |
US4045974A (en) * | 1976-08-11 | 1977-09-06 | General Electric Company | Combination motor cooler and storage coil for heat pump |
US4045975A (en) * | 1976-08-11 | 1977-09-06 | General Electric Company | Combination motor cooler and storage coil for heat pump |
US4049410A (en) * | 1974-07-29 | 1977-09-20 | Allan Sinclair Miller | Gas compressors |
US4084405A (en) * | 1975-09-30 | 1978-04-18 | Svenska Rotor Maskiner Aktiebolag | Refrigerating system |
US4094165A (en) * | 1976-11-19 | 1978-06-13 | Electric Power Research Institute, Inc. | Loss heat suppression apparatus and method for heat pump |
US4129012A (en) * | 1976-04-20 | 1978-12-12 | Newton, John | Heat transfer method and apparatus |
US4216661A (en) * | 1977-12-09 | 1980-08-12 | Hitachi, Ltd. | Scroll compressor with means for end plate bias and cooled gas return to sealed compressor spaces |
US4226604A (en) * | 1979-05-14 | 1980-10-07 | Solar Specialties, Inc. | Method and apparatus for preventing overheating of the superheated vapors in a solar heating system using a refrigerant |
USRE30499E (en) * | 1974-11-19 | 1981-02-03 | Dunham-Bush, Inc. | Injection cooling of screw compressors |
US4258553A (en) * | 1979-02-05 | 1981-03-31 | Carrier Corporation | Vapor compression refrigeration system and a method of operation therefor |
US4261180A (en) * | 1978-01-06 | 1981-04-14 | Hitachi, Ltd. | Refrigerator |
US4262492A (en) * | 1978-07-20 | 1981-04-21 | Tokyo Shibaura Denki Kabushiki Kaisha | Airconditioner |
US4326868A (en) * | 1978-12-20 | 1982-04-27 | Tokyo Shibaura Denki Kabushiki Kaisha | Refrigeration system utilizing a gaseous refrigerant bypass |
US4694660A (en) * | 1986-05-27 | 1987-09-22 | Tecumseh Products Company | Refrigeration system including capacity modulation |
US4739632A (en) * | 1986-08-20 | 1988-04-26 | Tecumseh Products Company | Liquid injection cooling arrangement for a rotary compressor |
US4742689A (en) * | 1986-03-18 | 1988-05-10 | Mydax, Inc. | Constant temperature maintaining refrigeration system using proportional flow throttling valve and controlled bypass loop |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE226695C (en) * | ||||
DE645746C (en) * | 1936-06-17 | 1937-06-03 | Georges Loeffler | Procedure for the operation of refrigeration compressors |
US2577107A (en) * | 1947-05-09 | 1951-12-04 | Gen Electric | Compressor head cooling system for refrigerator machines |
CH292909A (en) * | 1951-04-06 | 1953-08-31 | Fischer Hans | System used to raise a quantity of heat to a higher temperature level. |
US2958209A (en) * | 1958-11-03 | 1960-11-01 | Basil G Egon | Heat pump |
US3276221A (en) * | 1965-02-05 | 1966-10-04 | Ernest W Crumley | Refrigeration system |
US3416327A (en) * | 1967-02-02 | 1968-12-17 | Carrier Corp | Refrigeration machine |
DE1943936A1 (en) * | 1969-08-29 | 1971-03-18 | Danfoss As | Protection arrangement for a compressor |
US4370099A (en) * | 1977-11-14 | 1983-01-25 | Tecumseh Products Company | Discharge gas temperature control |
US4459819A (en) * | 1982-03-05 | 1984-07-17 | Emerson Electric Co. | Pulse controlled expansion valve and method |
EP0329199A1 (en) * | 1986-03-25 | 1989-08-23 | Mitsui Engineering and Shipbuilding Co, Ltd. | A method of curtailing power for driving a compressor in a heat pump and a compressor operating according to such a method |
-
1989
- 1989-10-17 US US07/422,769 patent/US4974427A/en not_active Expired - Lifetime
-
1990
- 1990-09-20 AU AU63010/90A patent/AU641684B2/en not_active Expired
- 1990-10-04 ES ES90310852T patent/ES2043578T3/en not_active Expired - Lifetime
- 1990-10-04 EP EP90310852A patent/EP0423976B1/en not_active Expired - Lifetime
- 1990-10-04 DE DE69007231T patent/DE69007231T2/en not_active Expired - Lifetime
- 1990-10-12 JP JP2275113A patent/JP3058908B2/en not_active Expired - Fee Related
- 1990-10-15 CN CN90108429A patent/CN1052535C/en not_active Expired - Lifetime
- 1990-10-15 MX MX022830A patent/MX169289B/en unknown
- 1990-10-16 RU SU904831307A patent/RU2096697C1/en active
- 1990-10-16 KR KR1019900016605A patent/KR0153441B1/en not_active IP Right Cessation
- 1990-10-16 BR BR909005190A patent/BR9005190A/en not_active IP Right Cessation
Patent Citations (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3150277A (en) * | 1962-03-14 | 1964-09-22 | Worthington Corp | Hermetic motor cooling by liquid refrigerant |
US3261172A (en) * | 1963-11-12 | 1966-07-19 | Vilter Manufacturing Corp | Coolant system for hermetically sealed motor |
US3931718A (en) * | 1970-04-16 | 1976-01-13 | Hall-Thermotank Products Ltd. | Refrigerant screw compression with liquid refrigerant injection |
US3851494A (en) * | 1972-08-10 | 1974-12-03 | Bosch Gmbh Robert | Motor vehicle cooling system with bypass regulated heat exchanger |
US3795117A (en) * | 1972-09-01 | 1974-03-05 | Dunham Bush Inc | Injection cooling of screw compressors |
US3859815A (en) * | 1973-10-12 | 1975-01-14 | Maekawa Seisakusho Kk | Two-stage compression apparatus |
US4020642A (en) * | 1973-11-19 | 1977-05-03 | Hall-Thermotank Products Limited | Compression systems and compressors |
US3885402A (en) * | 1974-01-14 | 1975-05-27 | Dunham Bush Inc | Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use |
US3913346A (en) * | 1974-05-30 | 1975-10-21 | Dunham Bush Inc | Liquid refrigerant injection system for hermetic electric motor driven helical screw compressor |
US4049410A (en) * | 1974-07-29 | 1977-09-20 | Allan Sinclair Miller | Gas compressors |
US4006602A (en) * | 1974-08-05 | 1977-02-08 | Fanberg Ralph Z | Refrigeration apparatus and method |
USRE30499E (en) * | 1974-11-19 | 1981-02-03 | Dunham-Bush, Inc. | Injection cooling of screw compressors |
US3945220A (en) * | 1975-04-07 | 1976-03-23 | Fedders Corporation | Injection cooling arrangement for rotary compressor |
US4084405A (en) * | 1975-09-30 | 1978-04-18 | Svenska Rotor Maskiner Aktiebolag | Refrigerating system |
US4129012A (en) * | 1976-04-20 | 1978-12-12 | Newton, John | Heat transfer method and apparatus |
US4045975A (en) * | 1976-08-11 | 1977-09-06 | General Electric Company | Combination motor cooler and storage coil for heat pump |
US4045974A (en) * | 1976-08-11 | 1977-09-06 | General Electric Company | Combination motor cooler and storage coil for heat pump |
US4094165A (en) * | 1976-11-19 | 1978-06-13 | Electric Power Research Institute, Inc. | Loss heat suppression apparatus and method for heat pump |
US4216661A (en) * | 1977-12-09 | 1980-08-12 | Hitachi, Ltd. | Scroll compressor with means for end plate bias and cooled gas return to sealed compressor spaces |
US4261180A (en) * | 1978-01-06 | 1981-04-14 | Hitachi, Ltd. | Refrigerator |
US4262492A (en) * | 1978-07-20 | 1981-04-21 | Tokyo Shibaura Denki Kabushiki Kaisha | Airconditioner |
US4326868A (en) * | 1978-12-20 | 1982-04-27 | Tokyo Shibaura Denki Kabushiki Kaisha | Refrigeration system utilizing a gaseous refrigerant bypass |
US4258553A (en) * | 1979-02-05 | 1981-03-31 | Carrier Corporation | Vapor compression refrigeration system and a method of operation therefor |
US4226604A (en) * | 1979-05-14 | 1980-10-07 | Solar Specialties, Inc. | Method and apparatus for preventing overheating of the superheated vapors in a solar heating system using a refrigerant |
US4742689A (en) * | 1986-03-18 | 1988-05-10 | Mydax, Inc. | Constant temperature maintaining refrigeration system using proportional flow throttling valve and controlled bypass loop |
US4694660A (en) * | 1986-05-27 | 1987-09-22 | Tecumseh Products Company | Refrigeration system including capacity modulation |
US4739632A (en) * | 1986-08-20 | 1988-04-26 | Tecumseh Products Company | Liquid injection cooling arrangement for a rotary compressor |
Cited By (133)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0529293A1 (en) * | 1991-08-30 | 1993-03-03 | Sanyo Electric Co., Ltd. | Refrigerating system |
US5189883A (en) * | 1992-04-13 | 1993-03-02 | Natkin & Company | Economical refrigeration retrofit systems |
EP0579374A1 (en) * | 1992-07-13 | 1994-01-19 | Copeland Corporation | Scroll compressor with liquid injection |
US5329788A (en) * | 1992-07-13 | 1994-07-19 | Copeland Corporation | Scroll compressor with liquid injection |
US5769610A (en) * | 1994-04-01 | 1998-06-23 | Paul; Marius A. | High pressure compressor with internal, cooled compression |
US5674053A (en) * | 1994-04-01 | 1997-10-07 | Paul; Marius A. | High pressure compressor with controlled cooling during the compression phase |
US5716197A (en) * | 1994-04-01 | 1998-02-10 | Paul; Marius A. | High pressure compressor with internal, inter-stage cooled compression having multiple inlets |
US6047557A (en) * | 1995-06-07 | 2000-04-11 | Copeland Corporation | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
US6408635B1 (en) | 1995-06-07 | 2002-06-25 | Copeland Corporation | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
US7389649B2 (en) | 1995-06-07 | 2008-06-24 | Emerson Climate Technologies, Inc. | Cooling system with variable duty cycle capacity control |
US20040123612A1 (en) * | 1995-06-07 | 2004-07-01 | Pham Hung M. | Cooling system with variable duty cycle capacity control |
US7654098B2 (en) | 1995-06-07 | 2010-02-02 | Emerson Climate Technologies, Inc. | Cooling system with variable capacity control |
USRE42006E1 (en) | 1995-06-07 | 2010-12-28 | Emerson Climate Technologies, Inc. | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
US5640854A (en) * | 1995-06-07 | 1997-06-24 | Copeland Corporation | Scroll machine having liquid injection controlled by internal valve |
US7419365B2 (en) | 1995-06-07 | 2008-09-02 | Emerson Climate Technologies, Inc. | Compressor with capacity control |
US6449972B2 (en) | 1995-06-07 | 2002-09-17 | Copeland Corporation | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
US6467280B2 (en) | 1995-06-07 | 2002-10-22 | Copeland Corporation | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
US20060288715A1 (en) * | 1995-06-07 | 2006-12-28 | Pham Hung M | Compressor with capacity control |
US6662583B2 (en) | 1995-06-07 | 2003-12-16 | Copeland Corporation | Adaptive control for a cooling system |
US6662578B2 (en) | 1995-06-07 | 2003-12-16 | Copeland Corporation | Refrigeration system and method for controlling defrost |
US6679072B2 (en) | 1995-06-07 | 2004-01-20 | Copeland Corporation | Diagnostic system and method for a cooling system |
US6309193B1 (en) * | 1996-02-26 | 2001-10-30 | Flowork Systems Inc. | Coolant pump for automotive use |
US5873255A (en) * | 1997-09-15 | 1999-02-23 | Mad Tech, L.L.C. | Digital control valve for refrigeration system |
US6295821B1 (en) * | 1997-09-15 | 2001-10-02 | Mad Tech Llc | Digital control valve for refrigeration system |
US6185949B1 (en) | 1997-09-15 | 2001-02-13 | Mad Tech, L.L.C. | Digital control valve for refrigeration system |
USRE44636E1 (en) | 1997-09-29 | 2013-12-10 | Emerson Climate Technologies, Inc. | Compressor capacity modulation |
US6036449A (en) * | 1998-03-24 | 2000-03-14 | Cummins Engine Company, Inc. | Air compressor control |
USRE40830E1 (en) | 1998-08-25 | 2009-07-07 | Emerson Climate Technologies, Inc. | Compressor capacity modulation |
US10041713B1 (en) | 1999-08-20 | 2018-08-07 | Hudson Technologies, Inc. | Method and apparatus for measuring and improving efficiency in refrigeration systems |
US6745584B2 (en) | 2001-03-16 | 2004-06-08 | Copeland Corporation | Digital scroll condensing unit controller |
CN101275799B (en) * | 2001-03-16 | 2015-09-23 | 科普兰有限责任公司 | Cooling system |
US6601397B2 (en) | 2001-03-16 | 2003-08-05 | Copeland Corporation | Digital scroll condensing unit controller |
CN101975167A (en) * | 2001-03-16 | 2011-02-16 | 科普兰有限责任公司 | Compressor control system |
CN100430674C (en) * | 2001-03-16 | 2008-11-05 | 科普兰有限责任公司 | Digital volute condensation unit controller |
US8495886B2 (en) | 2001-05-03 | 2013-07-30 | Emerson Climate Technologies Retail Solutions, Inc. | Model-based alarming |
US8316658B2 (en) | 2001-05-03 | 2012-11-27 | Emerson Climate Technologies Retail Solutions, Inc. | Refrigeration system energy monitoring and diagnostics |
US8065886B2 (en) | 2001-05-03 | 2011-11-29 | Emerson Retail Services, Inc. | Refrigeration system energy monitoring and diagnostics |
US7644591B2 (en) | 2001-05-03 | 2010-01-12 | Emerson Retail Services, Inc. | System for remote refrigeration monitoring and diagnostics |
US6718781B2 (en) | 2001-07-11 | 2004-04-13 | Thermo King Corporation | Refrigeration unit apparatus and method |
US8700444B2 (en) | 2002-10-31 | 2014-04-15 | Emerson Retail Services Inc. | System for monitoring optimal equipment operating parameters |
US7290398B2 (en) | 2003-08-25 | 2007-11-06 | Computer Process Controls, Inc. | Refrigeration control system |
US6862894B1 (en) | 2004-02-04 | 2005-03-08 | Donald R. Miles | Adaptive auxiliary condensing device and method |
US10335906B2 (en) | 2004-04-27 | 2019-07-02 | Emerson Climate Technologies, Inc. | Compressor diagnostic and protection system and method |
US9121407B2 (en) | 2004-04-27 | 2015-09-01 | Emerson Climate Technologies, Inc. | Compressor diagnostic and protection system and method |
US9669498B2 (en) | 2004-04-27 | 2017-06-06 | Emerson Climate Technologies, Inc. | Compressor diagnostic and protection system and method |
US9690307B2 (en) | 2004-08-11 | 2017-06-27 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring refrigeration-cycle systems |
US9046900B2 (en) | 2004-08-11 | 2015-06-02 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring refrigeration-cycle systems |
US10558229B2 (en) | 2004-08-11 | 2020-02-11 | Emerson Climate Technologies Inc. | Method and apparatus for monitoring refrigeration-cycle systems |
US8974573B2 (en) | 2004-08-11 | 2015-03-10 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring a refrigeration-cycle system |
US9017461B2 (en) | 2004-08-11 | 2015-04-28 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring a refrigeration-cycle system |
US9086704B2 (en) | 2004-08-11 | 2015-07-21 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring a refrigeration-cycle system |
US9081394B2 (en) | 2004-08-11 | 2015-07-14 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring a refrigeration-cycle system |
US9023136B2 (en) | 2004-08-11 | 2015-05-05 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring a refrigeration-cycle system |
US9021819B2 (en) | 2004-08-11 | 2015-05-05 | Emerson Climate Technologies, Inc. | Method and apparatus for monitoring a refrigeration-cycle system |
US9304521B2 (en) | 2004-08-11 | 2016-04-05 | Emerson Climate Technologies, Inc. | Air filter monitoring system |
US20080292471A1 (en) * | 2004-12-13 | 2008-11-27 | Bendix Commercial Vehicle Systems Llc | Air Compressor Control |
WO2006065333A1 (en) * | 2004-12-13 | 2006-06-22 | Bendix Commercial Vehicle Systems Llc | Air compressor control |
US20060127224A1 (en) * | 2004-12-13 | 2006-06-15 | Bendix Commercial Vehicle Systems Llc | Air compressor control |
US7885959B2 (en) | 2005-02-21 | 2011-02-08 | Computer Process Controls, Inc. | Enterprise controller display method |
US7885961B2 (en) | 2005-02-21 | 2011-02-08 | Computer Process Controls, Inc. | Enterprise control and monitoring system and method |
US20070059193A1 (en) * | 2005-09-12 | 2007-03-15 | Copeland Corporation | Scroll compressor with vapor injection |
US7596959B2 (en) | 2005-10-21 | 2009-10-06 | Emerson Retail Services, Inc. | Monitoring compressor performance in a refrigeration system |
US7665315B2 (en) | 2005-10-21 | 2010-02-23 | Emerson Retail Services, Inc. | Proofing a refrigeration system operating state |
US7752854B2 (en) | 2005-10-21 | 2010-07-13 | Emerson Retail Services, Inc. | Monitoring a condenser in a refrigeration system |
US7594407B2 (en) | 2005-10-21 | 2009-09-29 | Emerson Climate Technologies, Inc. | Monitoring refrigerant in a refrigeration system |
US7752853B2 (en) | 2005-10-21 | 2010-07-13 | Emerson Retail Services, Inc. | Monitoring refrigerant in a refrigeration system |
US8020402B2 (en) * | 2006-03-20 | 2011-09-20 | Emerson Climate Technologies, Inc. | Flash tank design and control for heat pumps |
US8505331B2 (en) | 2006-03-20 | 2013-08-13 | Emerson Climate Technologies, Inc. | Flash tank design and control for heat pumps |
US7827809B2 (en) | 2006-03-20 | 2010-11-09 | Emerson Climate Technologies, Inc. | Flash tank design and control for heat pumps |
US20110139794A1 (en) * | 2006-03-20 | 2011-06-16 | Emerson Climate Technologies, Inc. | Flash tank design and control for heat pumps |
US9885507B2 (en) | 2006-07-19 | 2018-02-06 | Emerson Climate Technologies, Inc. | Protection and diagnostic module for a refrigeration system |
US9823632B2 (en) | 2006-09-07 | 2017-11-21 | Emerson Climate Technologies, Inc. | Compressor data module |
US8769982B2 (en) | 2006-10-02 | 2014-07-08 | Emerson Climate Technologies, Inc. | Injection system and method for refrigeration system compressor |
US7647790B2 (en) | 2006-10-02 | 2010-01-19 | Emerson Climate Technologies, Inc. | Injection system and method for refrigeration system compressor |
US20100095704A1 (en) * | 2006-10-02 | 2010-04-22 | Kirill Ignatiev | Injection System and Method for Refrigeration System Compressor |
US20080236179A1 (en) * | 2006-10-02 | 2008-10-02 | Kirill Ignatiev | Injection system and method for refrigeration system compressor |
US8181478B2 (en) | 2006-10-02 | 2012-05-22 | Emerson Climate Technologies, Inc. | Refrigeration system |
US20080078204A1 (en) * | 2006-10-02 | 2008-04-03 | Kirill Ignatiev | Refrigeration system |
US7992408B2 (en) * | 2006-12-31 | 2011-08-09 | Carrier Corporation | Compressor |
US20100095690A1 (en) * | 2006-12-31 | 2010-04-22 | Carrier Corporation | Compressor |
US8807961B2 (en) | 2007-07-23 | 2014-08-19 | Emerson Climate Technologies, Inc. | Capacity modulation system for compressor and method |
US8157538B2 (en) | 2007-07-23 | 2012-04-17 | Emerson Climate Technologies, Inc. | Capacity modulation system for compressor and method |
US10352602B2 (en) | 2007-07-30 | 2019-07-16 | Emerson Climate Technologies, Inc. | Portable method and apparatus for monitoring refrigerant-cycle systems |
US9310094B2 (en) | 2007-07-30 | 2016-04-12 | Emerson Climate Technologies, Inc. | Portable method and apparatus for monitoring refrigerant-cycle systems |
US9683563B2 (en) | 2007-10-05 | 2017-06-20 | Emerson Climate Technologies, Inc. | Vibration protection in a variable speed compressor |
US9476625B2 (en) | 2007-10-08 | 2016-10-25 | Emerson Climate Technologies, Inc. | System and method for monitoring compressor floodback |
US9494158B2 (en) | 2007-10-08 | 2016-11-15 | Emerson Climate Technologies, Inc. | Variable speed compressor protection system and method |
US10962009B2 (en) | 2007-10-08 | 2021-03-30 | Emerson Climate Technologies, Inc. | Variable speed compressor protection system and method |
US10077774B2 (en) | 2007-10-08 | 2018-09-18 | Emerson Climate Technologies, Inc. | Variable speed compressor protection system and method |
US9541907B2 (en) | 2007-10-08 | 2017-01-10 | Emerson Climate Technologies, Inc. | System and method for calibrating parameters for a refrigeration system with a variable speed compressor |
US9494354B2 (en) | 2007-10-08 | 2016-11-15 | Emerson Climate Technologies, Inc. | System and method for calculating parameters for a refrigeration system with a variable speed compressor |
US9194894B2 (en) | 2007-11-02 | 2015-11-24 | Emerson Climate Technologies, Inc. | Compressor sensor module |
US9140728B2 (en) | 2007-11-02 | 2015-09-22 | Emerson Climate Technologies, Inc. | Compressor sensor module |
US10458404B2 (en) | 2007-11-02 | 2019-10-29 | Emerson Climate Technologies, Inc. | Compressor sensor module |
US7762789B2 (en) | 2007-11-12 | 2010-07-27 | Ingersoll-Rand Company | Compressor with flow control sensor |
US20090120114A1 (en) * | 2007-11-12 | 2009-05-14 | Ingersoll-Rand Company | Compressor with flow control sensor |
US8202057B2 (en) * | 2008-12-22 | 2012-06-19 | Hitachi Industrial Equipment Systems Co., Ltd. | Oil-free scroll compressor |
US20100158733A1 (en) * | 2008-12-22 | 2010-06-24 | Hirokatsu Kohsokabe | Oil-free scroll compressor |
CN101761475B (en) * | 2008-12-22 | 2012-09-05 | 株式会社日立产机系统 | Oil-free scroll compressor |
US8308455B2 (en) | 2009-01-27 | 2012-11-13 | Emerson Climate Technologies, Inc. | Unloader system and method for a compressor |
US9494356B2 (en) | 2009-02-18 | 2016-11-15 | Emerson Climate Technologies, Inc. | Condensing unit having fluid injection |
US8539785B2 (en) | 2009-02-18 | 2013-09-24 | Emerson Climate Technologies, Inc. | Condensing unit having fluid injection |
US9395711B2 (en) | 2009-05-29 | 2016-07-19 | Emerson Climate Technologies Retail Solutions, Inc. | System and method for monitoring and evaluating equipment operating parameter modifications |
US8473106B2 (en) | 2009-05-29 | 2013-06-25 | Emerson Climate Technologies Retail Solutions, Inc. | System and method for monitoring and evaluating equipment operating parameter modifications |
US20100305718A1 (en) * | 2009-05-29 | 2010-12-02 | Emerson Retail Services, Inc. | System and method for monitoring and evaluating equipment operating parameter modifications |
US8761908B2 (en) | 2009-05-29 | 2014-06-24 | Emerson Climate Technologies Retail Solutions, Inc. | System and method for monitoring and evaluating equipment operating parameter modifications |
US10234854B2 (en) | 2011-02-28 | 2019-03-19 | Emerson Electric Co. | Remote HVAC monitoring and diagnosis |
US10884403B2 (en) | 2011-02-28 | 2021-01-05 | Emerson Electric Co. | Remote HVAC monitoring and diagnosis |
US9703287B2 (en) | 2011-02-28 | 2017-07-11 | Emerson Electric Co. | Remote HVAC monitoring and diagnosis |
US9285802B2 (en) | 2011-02-28 | 2016-03-15 | Emerson Electric Co. | Residential solutions HVAC monitoring and diagnosis |
US9590413B2 (en) | 2012-01-11 | 2017-03-07 | Emerson Climate Technologies, Inc. | System and method for compressor motor protection |
US8964338B2 (en) | 2012-01-11 | 2015-02-24 | Emerson Climate Technologies, Inc. | System and method for compressor motor protection |
US9876346B2 (en) | 2012-01-11 | 2018-01-23 | Emerson Climate Technologies, Inc. | System and method for compressor motor protection |
US9310439B2 (en) | 2012-09-25 | 2016-04-12 | Emerson Climate Technologies, Inc. | Compressor having a control and diagnostic module |
US9762168B2 (en) | 2012-09-25 | 2017-09-12 | Emerson Climate Technologies, Inc. | Compressor having a control and diagnostic module |
WO2014100156A1 (en) | 2012-12-18 | 2014-06-26 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
US10352308B2 (en) | 2012-12-18 | 2019-07-16 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
US20140170006A1 (en) * | 2012-12-18 | 2014-06-19 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
US10280918B2 (en) | 2012-12-18 | 2019-05-07 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
EP2935888A4 (en) * | 2012-12-18 | 2017-01-18 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
US10274945B2 (en) | 2013-03-15 | 2019-04-30 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
US9638436B2 (en) | 2013-03-15 | 2017-05-02 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
US9551504B2 (en) | 2013-03-15 | 2017-01-24 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
US10488090B2 (en) | 2013-03-15 | 2019-11-26 | Emerson Climate Technologies, Inc. | System for refrigerant charge verification |
US10775084B2 (en) | 2013-03-15 | 2020-09-15 | Emerson Climate Technologies, Inc. | System for refrigerant charge verification |
US9803902B2 (en) | 2013-03-15 | 2017-10-31 | Emerson Climate Technologies, Inc. | System for refrigerant charge verification using two condenser coil temperatures |
US10060636B2 (en) | 2013-04-05 | 2018-08-28 | Emerson Climate Technologies, Inc. | Heat pump system with refrigerant charge diagnostics |
US9765979B2 (en) | 2013-04-05 | 2017-09-19 | Emerson Climate Technologies, Inc. | Heat-pump system with refrigerant charge diagnostics |
US10443863B2 (en) | 2013-04-05 | 2019-10-15 | Emerson Climate Technologies, Inc. | Method of monitoring charge condition of heat pump system |
RU2699844C1 (en) * | 2018-10-29 | 2019-09-11 | Антон Андреевич Румянцев | Cooling system compressor |
US11706899B2 (en) | 2019-07-25 | 2023-07-18 | Emerson Climate Technologies, Inc. | Electronics enclosure with heat-transfer element |
US11206743B2 (en) | 2019-07-25 | 2021-12-21 | Emerson Climate Technolgies, Inc. | Electronics enclosure with heat-transfer element |
US20220205447A1 (en) * | 2020-12-29 | 2022-06-30 | Danfoss (Tianjin) Ltd. | Compressor and method of controlling the compressor |
Also Published As
Publication number | Publication date |
---|---|
KR910008352A (en) | 1991-05-31 |
CN1051080A (en) | 1991-05-01 |
BR9005190A (en) | 1991-09-17 |
JPH03140755A (en) | 1991-06-14 |
ES2043578T3 (en) | 1994-05-01 |
EP0423976A1 (en) | 1991-04-24 |
RU2096697C1 (en) | 1997-11-20 |
KR0153441B1 (en) | 1999-01-15 |
DE69007231T2 (en) | 1994-06-16 |
MX169289B (en) | 1993-06-28 |
ES2043578T1 (en) | 1994-01-01 |
EP0423976B1 (en) | 1994-03-09 |
AU641684B2 (en) | 1993-09-30 |
CN1052535C (en) | 2000-05-17 |
JP3058908B2 (en) | 2000-07-04 |
DE69007231D1 (en) | 1994-04-14 |
AU6301090A (en) | 1991-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4974427A (en) | Compressor system with demand cooling | |
US3795117A (en) | Injection cooling of screw compressors | |
US4326868A (en) | Refrigeration system utilizing a gaseous refrigerant bypass | |
EP0921364B1 (en) | Pulsed flow for capacity control | |
CA2011741C (en) | Transport refrigeration system having means for enhancing the capacity of a heating cycle | |
EP0697086B1 (en) | Refrigerant flow rate control based on evaporator dryness | |
US6745584B2 (en) | Digital scroll condensing unit controller | |
US4180986A (en) | Refrigeration system on/off cycle | |
CA1177268A (en) | Airconditioner with refrigerant temperature responsive controller for compressor bypass valve | |
USRE30499E (en) | Injection cooling of screw compressors | |
CA1333222C (en) | Quench expansion valve refrigeration circuit | |
JP3238973B2 (en) | Refrigeration equipment | |
US3389576A (en) | System for controlling refrigerant condensing pressures by dynamic hydraulic balance | |
WO1996034237A1 (en) | Liquid cooling of discharge gas | |
CA2212640C (en) | Transport temperature control system having enhanced low ambient heat capacity | |
JP2004286428A (en) | Multiple area temperature control system | |
US5140828A (en) | Refrigeration cycle apparatus | |
JPH04295566A (en) | Engine-driven air-conditioning machine | |
KR20010103737A (en) | Vapor compression system and method | |
CA1284478C (en) | Refrigeration system including capacity modulation | |
EP0137731A2 (en) | Method and system of control for a cluthless variable displacement cooling system | |
WO1996041106A1 (en) | Liquid compressor cooling | |
US3834175A (en) | Servo temperature control valve for refrigeration system | |
JPS6161987A (en) | Sealed compressor | |
KR20180090691A (en) | Method for controlling refrigerant in a refrigerator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: COPELAND CORPORATION, A CORP. OF DE, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DIAB, TARIQ A. R.;REEL/FRAME:005160/0397 Effective date: 19891016 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
CC | Certificate of correction | ||
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: COPELAND CORPORATION LLC, OHIO Free format text: CERTIFICATE OF CONVERSION AND ARTICLES OF FORMATION;ASSIGNOR:COPELAND CORPORATION;REEL/FRAME:019215/0250 Effective date: 20060927 |